Answer: V = 193.25π
Step-by-step explanation: The method to calculate volume of a solid of revolution is given by an integral of the form:
V = ![\pi\int\limits^a_b {[f(x)]^{2}} \, dx](https://tex.z-dn.net/?f=%5Cpi%5Cint%5Climits%5Ea_b%20%7B%5Bf%28x%29%5D%5E%7B2%7D%7D%20%5C%2C%20dx)
f(x) is the area is the function that rotated forms the solid.
For f(x)=y= 
and solid delimited by x = 2 and x = 4:
V = 
V = 
V = 
V = 
V = 193.25π
The volume of a solid formed by y = 
and delimited by x = 2 and x = 4
is 193.25π cubic units.
Answer:
So Age of the person is 9.286 years who used 65 trees
Step-by-step explanation:
Given :
Trees used per year = 7 trees / year
Person Used = 65 trees in life
To Find:
Age of person=?
Solution:
We are given with the no of trees used by a person in his lifetime i.e. 65
Now we also see that most american use 7 trees/year
Now
Age of the person = Total trees used / Trees used per year
Putting in the values
we get
Age of the person = 65 / 7
= 9.286 years
So Age of the person is 9.286 years
#1 is 4,-2
#2 is I cnt figure out
#3 is 12,-8
Answer:
Prism
Step-by-step explanation:
A polygon is a plane figure connected by straight lines to form a closed shape, examples are triangle, square, hexagon, octagon e.t.c.
A prism is a solid figure that has two parallel and congruent faces (called the bases of the prism). The cross section of a prism parallel to the bases are the same shape as the bases. Prisms are being named according to the shape of the base polygon.
The answer is 7 but if you need the steps they are in the photo
